| | | | | | |

Core i9-9900K vs Ryzen 9 7950X


Description
The i9-9900K is based on Coffee Lake architecture while the 7950X is based on Zen 4.

Using the multithread performance as a reference, the i9-9900K gets a score of 545.3 k points while the 7950X gets 1597.8 k points.

Summarizing, the 7950X is 2.9 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ec
a60f12
Core
Coffee Lake-S
Raphael
Architecture
Coffee Lake
Base frecuency
3.6 GHz
4.5 GHz
Boost frecuency
5 GHz
5.7 GHz
Socket
LGA 1151
AM5
Cores/Threads
8/16
16/32
TDP
95 W
170 W
Cache L1 (d+i)
8x32+8x32 kB
16x32+16x32 kB
Cache L2
8x256 kB
16x1024 kB
Cache L3
16384 kB
131072 kB
Date
October 2018
September 2022
Mean monothread perf.
86.24k points
121.33k points
Mean multithread perf.
545.3k points
1597.79k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i9-9900K
7950X
Test#1 (Integers)
5.17k
6.05k (x1.17)
Test#2 (FP)
21.15k
23.41k (x1.11)
Test#3 (Generic, ZIP)
7.01k
16.49k (x2.35)
Test#1 (Memory)
15.32k
34.35k (x2.24)
TOTAL
48.66k
80.3k (x1.65)

Multithread

i9-9900K

7950X
Test#1 (Integers)
38.45k
128.82k (x3.35)
Test#2 (FP)
155.68k
465.79k (x2.99)
Test#3 (Generic, ZIP)
51k
289.43k (x5.68)
Test#1 (Memory)
18.26k
75.23k (x4.12)
TOTAL
263.38k
959.27k (x3.64)

AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i9-9900K
7950X
Test#1 (Integers)
33.62k
40.61k (x1.21)
Test#2 (FP)
30.02k
31.82k (x1.06)
Test#3 (Generic, ZIP)
7.17k
16.63k (x2.32)
Test#1 (Memory)
15.43k
32.28k (x2.09)
TOTAL
86.24k
121.33k (x1.41)

Multithread

i9-9900K

7950X
Test#1 (Integers)
248.93k
683.17k (x2.74)
Test#2 (FP)
224.43k
563.45k (x2.51)
Test#3 (Generic, ZIP)
53.39k
286.77k (x5.37)
Test#1 (Memory)
18.54k
64.4k (x3.47)
TOTAL
545.3k
1597.79k (x2.93)

Performance/W
i9-9900K
7950X
Test#1 (Integers)
2620 points/W
4019 points/W
Test#2 (FP)
2362 points/W
3314 points/W
Test#3 (Generic, ZIP)
562 points/W
1687 points/W
Test#1 (Memory)
195 points/W
379 points/W
TOTAL
5740 points/W
9399 points/W

Performance/GHz
i9-9900K
7950X
Test#1 (Integers)
6724 points/GHz
7124 points/GHz
Test#2 (FP)
6003 points/GHz
5582 points/GHz
Test#3 (Generic, ZIP)
1434 points/GHz
2917 points/GHz
Test#1 (Memory)
3087 points/GHz
5663 points/GHz
TOTAL
17247 points/GHz
21286 points/GHz

Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.

Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.

If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4